Process of manufacturing blood-albumin preparations.



obtained, the haemoglobin iron contents of UNITED s'rArns PATENT OFFICE.

ALFONS LANGER, OF

FRIEDRIQHSBERG, NEAR BERLIN, GERMANY,- ASSIGNOR TO KARL AUGUST LINGNER, OF DRESDEN, GERMANY.

PROCESS OF IdANUFACTUBING BLOOD-ALBU'MIN PREPARATIONS.

Specification of Letters Patent.

Application filed April 17, 1905. "Serial No. 266,161.

Patented April 7, 1908.

tions, of which the following is a full, clear,

extraction with water.

and exact description.

The present invention consists of a rocess for producing non-hygroscopic bloo albumin preparations, which are insoluble in water and which products form the subject matter ofan a plication bearing the same date and Serial 0. 349335.

It is known that by mixing defibrinized animal blood with inorganic insoluble or.-

practically insoluble salts of calcium, such or instance as carbonate of calcium, oxid of calcium, calcium hydrate, dicalcium phosphate, products with haemoglobin iron are which are increased to theextent of 334%, by

It has now een found, in contradistinction to this treatment, that organic, easily soluble salts of calcium may be employed, such for instance as calcium glycerophosphate, in order to enrich t e solu le or anic salts may be allowed to act on the de brinized animal blood in the presence of inorganic calcium salts such 'as calcium hydrate.

preparations which consists in mixin product with haemoglobin iron. These In carrying out'the process for instance 250 kg; of defibrinized ox-blood are taken and about 4 kg. of calcium lycerophosphate are dissolved therein and t en about 12 k of calcium hydrate are added, containing om 40%50% Ca(OH),. The whole mass sets in a few. hours to a gelatinous mass, which is dried at a temperature below 100 C. The dried product is reduced to a owder and washe with water and dried. is a dark lpowder, insoluble inspirits, but soluble in al aline intestinal juice and acid gashe product trio juice. It is intended for pharmaceutical use or for purposes of nourishment or luxury.

I claim as my invention A process for producing blood albumin brinized animal blood with organic ca cium salts soluble in water, in the presence of inorganic calcium salts, permitting the whole drying at a low temperature and reducing to ayowder.

In testimony whereof I afiix my signature inthe presence of two witnesses.

ALFONS LANGER.

Witnesses: l HENRY HASPER,

WOLDEMAR HAUPT.

to stand until it becomes a gelatinous mass, I 

